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Finding the Fourth Proportional to 98,374.96, 147,563.34 and 28,254.28

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Solution

The fourth proportional to 98,374.96, 147,563.34 and 28,254.28 is: 42,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,374.96 : 147,563.34 = 28,254.28 : x
  2. Step 2: Convert to fraction form
    98,374.96/147,563.34 = 28,254.28/x
  3. Step 3: Cross multiply
    98,374.96x = 147,563.34 × 28,254.28
  4. Step 4: Simplify right side
    98,374.96x = 4,169,295,926.10
  5. Step 5: Solve for x
    x = 4,169,295,926.10/98,374.96
  6. Step 6: Final answer
    x = 42,381.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.